Abstract
In Korea, most levee breaks had been occurred at steep or meandering region in river. To mitigate inland flood by protecting levee, riprap design formula should be modified by adopting channel meandering. In this study, experimental study had been performed to suggest modified riprap design formula. Unstability conditions of riprap revetments were regenerated in a straight and two meandering experimental channels. After experimental observation of unstability of riprap, the modified riprap design formula had been suggested. Furthermore, the design formula adopts correction coefficients which can consider cross section averaged velocity and channel meandering.
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